Method of pboducing heels



W,- CfCA AN. METHOD OF PRODU ING HEELS. APPLICATION FILED SEP Patented May 27, 1919.

WILLIAM C. CALLAHAN, F ALLENTOWN, PENNSYLVANIA.

METHOD OF PRODUCING HEELS.

Substitute for application Serial No. 106,260,

Serial No.

To all whom it may concern:

Be it known that I, lVILLIAM C. GALLA- HAN, a citizen of the United States of America, and resident of Allentown, in the county of Lehigh and State of Pennsylvania, have invented certain new and useful Improvements in Methods of Producing Heels, of which the following is a specification.

This invention consists in a method of producing, building or constructing heels of boots or shoes, and while I have usedthe terms producing, building or constructing I will hereinafter in the interest of brevity use the term producing in referring to the making of heels and it is to be understood that such term is used generally to include the building or constructing.

It has heretofore been the practice in producing the heel to assemble heel lifts which have been dipped in paste or glue and after assembling the same to join them by nails driven through the said lifts whereupon they are pressed and thereafter dried, when they are ready to be compressed.

Heels made in this manner require laborious efforts, consume unreasonable time and often by reason of the hardening of paste or glue prevent proper coloring, frequently necessitating sizing and filling and their bad appearance and construction render them unfit for use in shoes of good quality.

The purpose of the present invention is to produce heels by utilizing heel lifts whereby I avoid the necessity for dipping the lifts in paste or glue or which are not required to be glued in any other manner with liquid paste or glue and in which I also avoid the necessity for drying or employing the usual pressing operation.

Furthermore, the product or finished heel when made in accordance with the invention will have smooth faces immediately after completion or after the pressing operation has been carried on so that the said faces may be easily inked and will require no subsequent filling.

In carrying out the method which constitutes the present invention, I take a heel lift of approximately the desired outline and of a diameter either somewhat larger or smaller than that which the finished top lift is to have, the same depending upon the style of heel to be built.

I press upon this first heel lift, a heel lift Specification of Letters Patent.

Patented May 27, rate.

filed June 27, 1916. This application filed September 12, 1918.

with reverse adhesive sides cut to the size of the top lift or smaller. I then press another heel lift upon the heel lift with reverse adhesive sides and continue alternately with the plain heel lift and heel lift with reverse adhesive sides until the desired height is attained. Then I apply pressure to the faces of the first and last lifts in order to bring the entire surfaces of the plain lifts in contact with the entire surfaces of the alternative reverse adhesive side lifts,- whereupon the heel is immediately ready to be compressed.

A heel made according to this method has numerous advantages over the ordinary heel pasted or glued or nailed as will more fully appear hereinafter.

lVith the foregoing and other objects in view, the invention consists in the details of construction, and in the arrangement and combination of parts to be hereinafter more fully set forth and claimed. In describing the invention in detail, refcrence will be had to the accompanying drawings forming a part of this specification, wherein like characters denote corresponding parts in the several views, and in which- Figure 1 illustrates a perspective view of a heel lift;

Fig. 2 illustrates a heel lift with reverse adhesive sides, out to the size of the top lift or smaller so as not to come into contact with the knife of the heel shaving machine, but after being moistened is pressed upon the heel lift shown in Fig. l; and

Fig. 3 illustrates the top tap of the heel;

Fig. 4 illustrates a perspective View of v the parts assembled or stuck together.

In carrying out my invention, I employ heel lifts such as 5 and 6, which may be increased in number according to the height of the heel to be made and I also employ one or more members 7 which comprise the body having its sides coated with adhesive so that when the same is moistened, it may be inserted between the lifts or between the lifts and tap to cause the lifts, or the lifts and taps to remain in their assembled relations. The member 7 may be termed a heel binder, although it is comparatively thin or it may be termed a lift binder since its real urpose is to carry the adhesive by which the lifts are secured together. The lift binder is smaller than the lifts and it is the purpose of the inventor, as stated, that their edges should set in practically a quarter of an inch from the edges of the-"lifts although the inventor does not wish to be restricted to the proportions indicated.

.Heels are built in various styles and heights and in order to produce a heel by my method to any required height, it would only be necessary previous to compressing to add'as many lifts and cuts of reverse adhesive lifts as may be required to attain the desired height heel before subjecting to the pressure to which the members 5, 6 and 7 are subjected;

The usual method adopted in heel pro ducing is to either dip the lifts in paste or glue or apply the same by brush and when the lifts so pasted or glued are produced to the desired height, the driving of nails by hand or machine, after which the heel is placed upon a board for pressing, remaining under pressure from four to twentyfour hours depending upon atmospheric conditions. After the heels have been pressed they are removed to the drying room and placed in trays or shelves around which heated air is circulated by pumps or fans. These pumps or fans must be continually operated from four totwenty-four hours. Any known and used substances for heel producing that have been wet and then dried with and under pressure, will warp and curl and cause a tendency to open or split between the lifts, resultingin a very unsatisfactory heel. The accumulation of .hardening paste or glue upon the outside surface of the heel requires the shaving .operator to frequently resharpen the heel shaving knives and prevents proper coloring of the heel by reason of the ink beingunable to penetrate the hardened paste or glue on the surface of the heel. Y

Any known composition from which heels are produced after having been wet, have a tendency to crack open between the lifts. Many shoe manufacturers, by reason of the crocking or cracking after heel shaving and scouring, use a filler preventing these cracks appearing on the finished heel. My method applies no water to lifts 5 and 6, or any the member 7, between the members 5 and 6 which are unmoistened and having subjected the elements 5, 6 and 7 to pressure to from 15 to 25 pounds or such to bring lift 3 and lift 6 in even contact with lift 7 the same is ready for immediate compression (my method preventing warping, curling and consequent splitting between lifts) and the" time, labor and cost of resharpening, the replacing of heel shaving knives and the inability of properly coloring the heels with ink together with the loss of labor or placing heels upon boards for pressing are obviated.

I claim.-

1. The method of producing a heel consisting in employing heel lift binders with reverse adhesive sides, moistened, alternatelv with heel lifts composed of leather or any known composition used in the manufacture ofheels, the reverse adhesive lift binders being smaller so that there will be a margin between and around the edge of the alternate lifts and the lift binder.

2. The method of producing a h'eelconsistingin superimposing heel lifts and interposing between said lifts moistened adhesive lift binders, comprising a member having its reverse sides coated'with adhesive and subjecting the assembled members to pressure.

3. The method of producing a heel consisting in superimposing heel lifts and interposing between said lifts a member having its reverse sides coated with adhesive and subjecting the assembled members to pressure.

WILLIAM C. OALLAHAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

. Washington, D. G. 

